名词
中文翻译：老龄化
同义词：
['aging', 'senescence', 'aging process', 'aging population']
例句：
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1.The elderly people in the village are often seen playing chess in the park.
村里的老年人经常在公园里下象棋。
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2.As we age, our bodies undergo changes that affect our health.
随着年龄的增长，我们的身体会发生变化，影响我们的健康。
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3. The aging population is a major challenge for the government to address.
老龄化人口是政府需要解决的主要挑战。